Keep your ClickHouse table inventory handy
Ask Notis to list tables on a schedule and send a compact inventory to your report channel.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Why this helps
Finding the right table for a calendar report can become a recurring scavenger hunt.
- Review table inventory on a cadence.
- See table engine, size, and row count information returned by the action.
- Find candidate tables for calendar reporting.
Setup
Build it in a few focused steps.
- 1Connect ClickHouse once in the Notis portal.
- 2Create an automation in Automations, New Automation, or tell Notis from any channel.
- 3In one instruction, ask Notis to list tables in the relevant database and summarize the returned inventory.
- 4Pick a recurring schedule and choose where run reports should go.
- 5Test once and confirm the report includes the expected table information.
Questions about this workflow
What information does the action return?
It returns table information including engine, size, and row count.
Can it inspect a table's columns?
Use Get Table Schema for detailed column definitions, types, keys, and optionally sample data.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to ClickHouse. A trigger fires from one place; an action lands in another.
Google Calendar triggers
ClickHouse actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Database Schema
Get comprehensive schema overview of an entire database including all tables and optionally their column definitions. essential for ai agents to understand the complete database structure in a single call.
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Get Table Schema
Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. this is essential for ai agents to understand table structure before constructing queries.
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
Event Starting Soon
Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Calendar Event Changes
**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Calendar Event Sync
Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Connect any two apps with Notis in the middle.
Google Calendar and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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